We're dividing 198201 by 18 
The aim is to understand the frequency of 18 in 198201.

Going ahead to step 1:
18 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 18

Let's proceed to step 2:
When dividing 19 by 18, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 1 after subtracting 18 from 19.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 18

Going ahead to step 3:
When dividing 18 by 18, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 18 from 18 to get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 18

Going ahead to step 4:
18 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 110.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 18

Advancing to step 5:
18 can be fit into 20 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1101.0
If we subtract 18 from 20, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 18

Let's proceed to step 6:
The number 18 fits into 21 1 times, leaving a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 11011.0
Subtract 18 from 21 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
30 divided by 18 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 11011.1
If we take 18 away from 30, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
18 goes into 120 6 times with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 11011.16
Subtract 108 from 120 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
18 goes into 120 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 11011.166
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 11011.166, and the remainder is 0.0012.